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Archive for February, 2014

Would anyone read an article about mitochondrial transfer? Not so much. But a screaming headline about human babies that have three parents? – now that gets everyone’s attention. Reality as usual, is more nuanced than the headlines. So before all the hyperventilation starts, let’s get the science part straight. Mitochondrial DNA. We inherit our mitochondrial […]

I received this question from a reader this morning and it seemed like a great topic for my “Q from U” Series. I obviously know the basics (of fertilization), but I recently found out that a just ejaculated sperm can not immediately fertilize an egg. How much time and what does the sperm go through […]